$NetBSD: patch-src_CMakeLists.txt,v 1.6 2023/12/01 18:27:22 jperkin Exp $

Fix building assembler files.
https://github.com/llvm/llvm-project/issues/59978

Use correct flags to link.

--- src/CMakeLists.txt.orig	2023-06-10 22:58:16.000000000 +0000
+++ src/CMakeLists.txt
@@ -1,4 +1,5 @@
 # Get sources
+enable_language(ASM)
 
 set(LIBUNWIND_CXX_SOURCES
     libunwind.cpp
@@ -31,15 +32,6 @@ set(LIBUNWIND_ASM_SOURCES
     UnwindRegistersSave.S
     )
 
-# See add_asm_sources() in compiler-rt for explanation of this workaround.
-# CMake doesn't work correctly with assembly on AIX. Workaround by compiling
-# as C files as well.
-if((APPLE AND CMAKE_VERSION VERSION_LESS 3.19) OR
-   (MINGW AND CMAKE_VERSION VERSION_LESS 3.17) OR
-   (${CMAKE_SYSTEM_NAME} MATCHES "AIX"))
-  set_source_files_properties(${LIBUNWIND_ASM_SOURCES} PROPERTIES LANGUAGE C)
-endif()
-
 set(LIBUNWIND_HEADERS
     AddressSpace.hpp
     assembly.h
@@ -160,7 +152,7 @@ if (LIBUNWIND_ENABLE_SHARED)
   set_target_properties(unwind_shared
     PROPERTIES
       LINK_FLAGS "${LIBUNWIND_LINK_FLAGS}"
-      LINKER_LANGUAGE C
+      LINKER_LANGUAGE CXX
       OUTPUT_NAME "${LIBUNWIND_SHARED_OUTPUT_NAME}"
       VERSION "1.0"
       SOVERSION "1"
@@ -200,7 +192,7 @@ if (LIBUNWIND_ENABLE_STATIC)
   set_target_properties(unwind_static
     PROPERTIES
       LINK_FLAGS "${LIBUNWIND_LINK_FLAGS}"
-      LINKER_LANGUAGE C
+      LINKER_LANGUAGE CXX
       OUTPUT_NAME "${LIBUNWIND_STATIC_OUTPUT_NAME}"
   )